Invention Grant
- Patent Title: Cushion pin device for press
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Application No.: US15228778Application Date: 2016-08-04
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Publication No.: US10239107B2Publication Date: 2019-03-26
- Inventor: Ju Young Kim
- Applicant: Hyundai Motor Company
- Applicant Address: KR Seoul
- Assignee: Hyundai Motor Company
- Current Assignee: Hyundai Motor Company
- Current Assignee Address: KR Seoul
- Agency: Morgan Lewis & Bockius LLP
- Priority: KR10-2013-0106560 20130905
- Main IPC: B21D24/08
- IPC: B21D24/08 ; B21D24/02 ; B21D24/14 ; B30B15/06

Abstract:
A cushion pin device for a press having a cushion pad in which a blank holder is seated on the top thereof outside a lower mold, and locks a blank holder to an upper mold while pressurizing an edge of a molded panel, includes: a cushion support disposed below the cushion pad, a cushion cylinder connected with a lower part of the cushion pad to move up or down the cushion pad from the cushion support, a linear scale mounted between the cushion pad and the cushion support to measure the position of the cushion pad, a main pressure control unit that keeps internal pressure of each cushion cylinder similarly, and a sub pressure control unit that is interconnected with the main pressure control unit so as to control the locking position of the cushion pad when each cushion cylinder operates.
Public/Granted literature
- US20160339500A1 CUSHION PIN DEVICE FOR PRESS Public/Granted day:2016-11-24
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